Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"may dao dong snippets" » "may lao dong snippets", "may ha dong snippets", "may bat dong snippets", "mac dao dong snippets", "may dap dong snippets", "may do dong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("may dao dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("may dao dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( may dao dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("may dao dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.